Improvement in glass-furnaces



UNITED 'STATES PATENT OFFICE.

EDWARD BAYARD AND BENJAMIN A. MASON, OF NEW YORK, N. Y.

|MPR`ovEMENT IN .eLAss-FuRNAcEs.

Specification forming part of Letters Patent No. 136,957, dated March 1S, 1873.

To all whom tmay concern: From the inner edge of each project small Beit known that we, EDWARD BAYARD and pipes, (the pipe (l projecting from pipe B, and BENJAMIN A. MASON, of the city, county, and pipe c from the pipe 0,) so placed that they State of New York, have invented a certain form, through the openings a, Fig. 2, radial new and useful Improvement in Apparatus lines with the center of the furnace. They all for and Method of Making and Melting of project toward a common center, but are of Glass 5 and we do hereby declare that the folsufficient length only to reach the entrance of lowing is a description of the same, reference the openings a. Through .the pipe B gas being had to the accompanying drawing makiiows, and from pipe B through pipe d until it ing part of this specification, in whichreaches the mouth or outlet in theinner end of Figure lis a plan view of the apparatus. pipe d, where it is ignited. The air-pipe O Fig. 2 is a plan view of the apparatus taken conveys the blast to and through the pipe e, through the line l l of Fig. 3. Fig. 3 is a to the outlet at its end, where, meeting the sectional elevation of the apparatus, showing burning gas, it mingles with the same and the melting-pot within the furnace. Fig. 4 is forces it through the ordinary atmosphere into a sectional elevation of the furnace. the interior of the furnace, where it is con- The same letters indicate like parts in the sumed, producing an intense heat, by which drawing. y the ingredients in the pot F are quickly con- Our plan of opera-tion is to construct one or verted into molten glass. more cylindrical furnaces, connected, or sep- The top of the furnace may be closed by any arate from each other, as may be desired. suitable covering, leaving openings for ven- We do not limit ourselves to the construction tilation when necessary. .In the top of the of cylindrical furnaces, as square or oblong wall of the furnace are one or more openings, ones will answer; but we think the most eco- G, through which the operator can reach the nomical results will be obtained by the use of molten glass, or recharge the pot F.

the cylindrical-shaped furnace, which is rap- What we claim, and desire to secure by Letidly heated, and kept at a great degree of heat ters Patent, isby gas, which we apply and burn in the man- 1. In a glass-furnace, the air-pipes O and e,

ner hereinafter described. The great heat atin combination with the gaspipes B and d, tained by this mode of burning gas fuses the extending only to the exterior walls of the ingredients in the melting-pot in a few mofurnace, as and for the purpose set forth and ments, so that the glass is in proper condition described.

for the various manipulations of the operator. 2. In a glass-furnace, the openings a, when At the base of the furnace A, Fig. 2, are placed in its walls and used in combination openings a, Fig. 2, at or near the surface of with air-pipes O and e, and gas-pipes B and d, the hearth, extending from the exterior of the .or their equivalents, substantially as and for furnace through the wall toward the center, the purpose set forth and described.

forming radial lines with the saine. These EDWARD BAYARD. openings may be of any desired number, are BENJ. A. MASON. angular at the exterior end, being so shaped' as to introduce an additional current of oxy. Witnesses:

gen into the furnace. Around and encircling JONATHAN MAEsHALL,

the furnace are two pipes, B and C, Fig. 3. WILLIAM A. HARDING, Jr. 

